EP0664761A1 - Infusion packets. - Google Patents
Infusion packets.Info
- Publication number
- EP0664761A1 EP0664761A1 EP93921044A EP93921044A EP0664761A1 EP 0664761 A1 EP0664761 A1 EP 0664761A1 EP 93921044 A EP93921044 A EP 93921044A EP 93921044 A EP93921044 A EP 93921044A EP 0664761 A1 EP0664761 A1 EP 0664761A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- packet
- thread
- compartments
- end portions
- infusion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
- B65D85/804—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package
- B65D85/808—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package for immersion in the liquid to release part or all of their contents, e.g. tea bags
Definitions
- This invention relates to packets in which a quantity of infusible or soluble material is held in a porous envelope which is immersed in liquid to prepare an infusion.
- opposite end of the packet may be notched (US 3237550 and 2878927) , but the difficulty arises that the notching weakens the end seal of the packet, which is particularly important because the tightening of the loop of thread will apply additional stress at this point and bring the risk that the bag will burst and its contents be spilt.
- Increasing the width of the seal to avoid that danger leads to a wasteful use of material and, moreover, the consequent increase of size of the packet will usually be a disadvantage from the consumer's point of view.
- an infusion packet comprising a pair of superimposed compartments joined at opposite ends, the join at least at one of said ends comprising a folded region lying between the compartments and projecting towards the other said end, a thread having end portions held by attachment means at or adjacent said other end, and an intermediate portion located in said folded region of the packet between the compartments, the thread being displaceable in said attachment means by applying tension to the end portions to contract the packet for expressing liquid from the packet after infusion.
- the double compartment form of the packet itself provides a relatively compact container for the infusible material and the invention is capable of being employed in such a way that the ability to contract the packet is obtained without requiring any increase of size, nor any additional securing means.
- the end portions of the thread may be held between the compartments at said other end of the packet .
- the compartments are heat sealed to each other at said other end with the formation of at least one space in the heat sealing providing passage means in which the thread end portions are displaceably held.
- the respective end portions of the thread run exteriorly from said folded region to said other end of the compartments on opposite sides of the packet. It may then be convenient to hold said end portions of the thread by staple means at said other end of the packet.
- At least one of the end portions of the thread is attached to a tag.
- both end portions are attached to respectively separable parts of the tag so that the loop can be tightened by grasping the separated tab parts.
- Figs . 1 and 2 show a tea bag according to the invention in front and side views respectively, and Figs. 3 to 5 illustrate some modi ications of the tea bag in Figs. 1 and 2.
- the illustrated tea bag 2 comprises a tubular web of paper or the like permeable sheet material which has been formed into two superimposed compartments 2a, 2b each containing a dose of tea leaves. It is of course possible to utilise other infusible materials, such as ground coffee, in the same way.
- An intermediate portion of the tubular web which extends between the lower ends of the compartments 2a, 2b is formed in a V-fold 4 projecting towards the opposite end of the tea bag.
- lateral and central flaps 6a, 6b of the web material are folded over and secured by a staple 8, preferably of aluminium, to seal in the contents of the compartments.
- the compartment 2b is shorter than the compartment 2a before the flaps are folded over, the flap 6b being formed by the top of the compartment 2a only.
- a thread 10 captured by the staple 8 serves to suspend the packet in an infusing liquid.
- the thread passes around the tea bag, from the staple 8 in a first run 10a diagonally down one outer side of the bag and then at 10b along the V-fold to continue in a run 10c diagonally along the opposite outer side of the bag to the staple.
- the end portions of the thread are thus held captive under the staple 8 on opposite sides of the bag.
- the end portions are held sufficiently securely to avoid the risk that the intermediate portion 10b of the thread will slip out from the V-fold 4, but when tensioned the thread will slide easily through the staple 8 to tighten the loop passing through the V-fold.
- the tea bag is contracted and surplus liquid is expressed from its contents after the tea leaves have been infused.
- a tag 12' is separable into two parts, by a weakening such as a line of perforations 22, and the free ends of thread are secured each to a respective one of said tag parts by glue or heat seals. When separated, the two parts of the tag provide convenient finger grips for pulling the thread and contracting the tea bag.
- the free lengths of thread can be wound loosely round the bag or gathered into a coil or roll, preferably under the tag, and the tag can be temporarily tacked to the web to hold the thread in place .
- the closure flaps 6a, 6b can be folded over opposite sides of the tag bag instead of the same side as shown in Figs. 1 and 2.
- Fig. 3 illustrates how the two lateral flaps 6a can be folded to one side, over one compartment, and the central flap 6b folded to the opposite side, over the other compartment.
- the end portions of the thread run, from the V-fold, between the opposed faces of the two compartments to the upper end of the tea bag.
- the thread end portions can conveniently be located within the extent of the seal.
- a heat seal could be interrupted across the width of the bag to form one or more channels through which the thread end portions extend, from the space between the compartments to the exterior.
- the end thread runs 10a, 10c converge to pass through a common central passage 24 in the heat sealed top margin of the bag, underneath the flap 6b.
- the thread runs 10a, 10c may alternatively cross over each other in their course between the compartments, as is shown in Fig. 5, to be held by the flaps themselves and emerge from spaced regions at the upper end of the tea bags.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Packages (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Medicinal Preparation (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP93921044A EP0664761B1 (en) | 1992-10-02 | 1993-10-01 | Infusion packets |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP92309014 | 1992-10-02 | ||
EP92309014 | 1992-10-02 | ||
PCT/GB1993/002049 WO1994007763A1 (en) | 1992-10-02 | 1993-10-01 | Infusion packets |
EP93921044A EP0664761B1 (en) | 1992-10-02 | 1993-10-01 | Infusion packets |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0664761A1 true EP0664761A1 (en) | 1995-08-02 |
EP0664761B1 EP0664761B1 (en) | 1996-07-24 |
Family
ID=8211504
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93921044A Expired - Lifetime EP0664761B1 (en) | 1992-10-02 | 1993-10-01 | Infusion packets |
Country Status (15)
Country | Link |
---|---|
US (1) | US5366741A (en) |
EP (1) | EP0664761B1 (en) |
JP (1) | JPH08504391A (en) |
AT (1) | ATE140672T1 (en) |
AU (1) | AU671300B2 (en) |
CA (1) | CA2146147A1 (en) |
DE (1) | DE69303824T2 (en) |
DK (1) | DK0664761T3 (en) |
ES (1) | ES2089849T3 (en) |
GR (1) | GR3020770T3 (en) |
NZ (1) | NZ256118A (en) |
TR (1) | TR27177A (en) |
TW (1) | TW264443B (en) |
WO (1) | WO1994007763A1 (en) |
ZA (1) | ZA937278B (en) |
Families Citing this family (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9219657D0 (en) * | 1992-09-17 | 1992-10-28 | Unilever Plc | Tagged articles |
DE69416420T2 (en) * | 1993-10-12 | 1999-06-10 | Unilever N.V., Rotterdam | INFUSION BAG AND THEIR PRODUCTION |
IN183041B (en) * | 1993-10-12 | 1999-08-28 | Lever Hindustan Ltd | |
JPH09504765A (en) * | 1993-11-08 | 1997-05-13 | ユニリーバー・ナームローゼ・ベンノートシャープ | Extraction bag |
GB9406833D0 (en) * | 1994-04-07 | 1994-06-01 | Unilever Plc | Packets and their manufacture |
IT1282483B1 (en) * | 1995-04-04 | 1998-03-23 | Tecnomeccanica Srl | MACHINE FOR PACKAGING FILTER BAGS CONTAINING AN INFUSION PRODUCT PROVIDED WITH A SOCKET LABEL CONNECTED TO THE BAG |
IT1279697B1 (en) * | 1995-12-07 | 1997-12-16 | Tecnomeccanica Srl | MACHINE FOR PACKAGING ASSEMBLIES FOR INFUSION IN A LIQUID IN WHICH AN INFUSIBLE PRODUCT IS CONTAINED IN A FILTER BAG IN |
DE29601442U1 (en) * | 1996-01-29 | 1996-05-30 | Ostfriesische Tee-Gesellschaft Laurens Spethmann, 21218 Seevetal | Teabag |
US5979144A (en) * | 1996-07-11 | 1999-11-09 | Lipton | Packets and their manufacture |
US5861185A (en) * | 1996-08-22 | 1999-01-19 | Mars, Incorporated | Ultrasonic forming of confectionery products |
US5871783A (en) | 1996-08-22 | 1999-02-16 | Mars, Incorporated | Apparatus for ultrasonically forming confectionery products |
IT1286767B1 (en) * | 1996-11-15 | 1998-07-17 | Luxteco International S A Soci | PACKAGING EQUIPMENT |
US5871793A (en) | 1996-11-27 | 1999-02-16 | Mars Incorporated | Puffed cereal cakes |
EP0850847A1 (en) * | 1996-12-23 | 1998-07-01 | Unilever Plc | Infusion package and method of forming it |
EP0875467A1 (en) * | 1997-04-23 | 1998-11-04 | Unilever Plc | Improvements in or relating to infusion packages |
WO1999003734A1 (en) * | 1997-07-18 | 1999-01-28 | Thaumaturge Pty. Limited | Squeezable beverage bags |
NZ506122A (en) * | 1998-03-04 | 2003-11-28 | Cryovac Inc | Stack-sealable, heat-shrinkable multiplayer packaging film |
GB2335910B (en) | 1998-04-01 | 2002-07-03 | Masterfoods S A Nv | Boil-in-bag sachet |
US6368647B1 (en) | 1998-12-29 | 2002-04-09 | Mars, Incorporated | Ultrasonically activated continuous slitter apparatus and method |
US6395317B1 (en) | 1999-02-11 | 2002-05-28 | Mars Incorporated | Process and apparatus for forming dual compartment pouches from a continuous web |
US6153232A (en) * | 1999-02-11 | 2000-11-28 | Uncle Ben's, Inc. | Boil-in-bag package |
AU3269201A (en) * | 1999-11-12 | 2001-06-06 | Krumpet International, Llc | Infusion bag squeezing assembly |
US8642051B2 (en) | 2000-03-21 | 2014-02-04 | Suzanne Jaffe Stillman | Method of hydration; infusion packet system(s), support member(s), delivery system(s), and method(s); with business model(s) and Method(s) |
DE60130440D1 (en) | 2000-03-21 | 2007-10-25 | Suzanne Jaffe Stillman | ROUNDRY BAG WITH DECORATIVE TOOLS, BEARING ELEMENTS, DISPENSER AND METHOD |
US6574944B2 (en) | 2001-06-19 | 2003-06-10 | Mars Incorporated | Method and system for ultrasonic sealing of food product packaging |
US6655948B2 (en) | 2001-08-31 | 2003-12-02 | Mars, Incorporated | System of ultrasonic processing of pre-baked food product |
US6635292B2 (en) | 2001-10-26 | 2003-10-21 | Mars, Incorporated | Ultrasonic rotary forming of food products |
AU2003211855A1 (en) * | 2002-02-07 | 2003-09-02 | Teangle A/S | A tea bag |
US20040131729A1 (en) * | 2003-01-02 | 2004-07-08 | Olivia Helprin | Beverage infusion device |
US20050048186A1 (en) * | 2003-08-27 | 2005-03-03 | Unilever Bestfoods North America Usa | Infusion system for enhanced flavor beverages |
US7235273B2 (en) * | 2003-12-22 | 2007-06-26 | Andrea Ruston | Tie down reinforced infusion bag |
US20060222738A1 (en) * | 2005-04-05 | 2006-10-05 | Ann-Marie Paz | Package for draining an infusion bag |
SE532210C2 (en) * | 2006-01-09 | 2009-11-17 | One Cafe Internat Ab | Disposable drink infusion bag for single use |
US20070209523A1 (en) * | 2006-03-10 | 2007-09-13 | Abundant Creations, Inc. | Infusion system |
US20090246324A1 (en) * | 2008-03-28 | 2009-10-01 | Sluzas Daniel M | Infusion package |
US8337918B1 (en) * | 2009-03-09 | 2012-12-25 | Fair Sara E | Fillable filter envelope system |
JP5499167B2 (en) * | 2010-06-17 | 2014-05-21 | 不双産業株式会社 | Extraction bag and packaging sheet |
RU2446085C1 (en) | 2010-08-20 | 2012-03-27 | Елена Аркадьевна Меринова | Disposable sieve for tea brewing with spinning system |
RU2011149134A (en) * | 2011-12-02 | 2015-03-27 | Елена Аркадьевна Меринова | METHOD FOR MANUFACTURING A DISPOSABLE BREWING SCREEN WITH EXTRACTION SYSTEM |
US20140260121A1 (en) * | 2013-03-15 | 2014-09-18 | Yukie Jaqueline Tokuda | Device and method for bagging a consumable product for steeping |
USD768355S1 (en) * | 2013-09-17 | 2016-10-11 | Steve N. Schwartz | Tea filter bag |
US9392814B2 (en) | 2014-06-06 | 2016-07-19 | Nicholas J. Singer | Delivery system for drinks |
USD773313S1 (en) | 2015-06-23 | 2016-12-06 | Nicholas J. Singer | Package |
CN105501709A (en) * | 2016-01-12 | 2016-04-20 | 徐丽 | Tea bag and manufacturing method thereof |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2335159A (en) * | 1941-09-30 | 1943-11-23 | Ivers Lee Co | Adhesively sealed package |
US2468464A (en) * | 1946-02-07 | 1949-04-26 | Ivers Lee Co | Infusion package |
US2466281A (en) * | 1947-09-23 | 1949-04-05 | William R Shaw | Tea bag |
US2878927A (en) * | 1958-04-02 | 1959-03-24 | Oscar W Tippett | Self-squeezing tea or coffee bag |
US2881910A (en) * | 1958-04-17 | 1959-04-14 | Clarence W Jones | Tea bag |
US2986269A (en) * | 1959-11-09 | 1961-05-30 | Goldberg Ernest | Package for tea or other infusion commodities |
US3191355A (en) * | 1960-01-16 | 1965-06-29 | Morpurgo Fulvio | Tea bags and apparatus for use in their manufacture |
US3237550A (en) * | 1963-10-18 | 1966-03-01 | Joseph A Christopher | Extraction package for infusion materials |
US3415656A (en) * | 1965-09-09 | 1968-12-10 | Philip L. Lundgren | Compressible infusion bag |
US3597222A (en) * | 1968-03-22 | 1971-08-03 | Thaddeus John Kalemba | Infusion packet |
CA2078130A1 (en) * | 1990-03-14 | 1991-09-15 | Peter Robert Raffaele | Infusion bag |
EP0552214B1 (en) * | 1990-10-10 | 1994-12-28 | Tidy Tea Limited | Infusion package |
-
1993
- 1993-09-24 TW TW082107881A patent/TW264443B/zh active
- 1993-09-30 TR TR00874/93A patent/TR27177A/en unknown
- 1993-09-30 ZA ZA937278A patent/ZA937278B/en unknown
- 1993-10-01 JP JP6508856A patent/JPH08504391A/en active Pending
- 1993-10-01 DE DE69303824T patent/DE69303824T2/en not_active Expired - Fee Related
- 1993-10-01 AT AT93921044T patent/ATE140672T1/en not_active IP Right Cessation
- 1993-10-01 NZ NZ256118A patent/NZ256118A/en unknown
- 1993-10-01 DK DK93921044.9T patent/DK0664761T3/en active
- 1993-10-01 CA CA002146147A patent/CA2146147A1/en not_active Abandoned
- 1993-10-01 US US08/131,262 patent/US5366741A/en not_active Expired - Lifetime
- 1993-10-01 WO PCT/GB1993/002049 patent/WO1994007763A1/en active IP Right Grant
- 1993-10-01 AU AU48320/93A patent/AU671300B2/en not_active Ceased
- 1993-10-01 EP EP93921044A patent/EP0664761B1/en not_active Expired - Lifetime
- 1993-10-01 ES ES93921044T patent/ES2089849T3/en not_active Expired - Lifetime
-
1996
- 1996-08-12 GR GR960402138T patent/GR3020770T3/en unknown
Non-Patent Citations (1)
Title |
---|
See references of WO9407763A1 * |
Also Published As
Publication number | Publication date |
---|---|
NZ256118A (en) | 1995-11-27 |
DE69303824T2 (en) | 1997-01-23 |
WO1994007763A1 (en) | 1994-04-14 |
TW264443B (en) | 1995-12-01 |
ES2089849T3 (en) | 1996-10-01 |
AU671300B2 (en) | 1996-08-22 |
ZA937278B (en) | 1995-03-30 |
GR3020770T3 (en) | 1996-11-30 |
DE69303824D1 (en) | 1996-08-29 |
JPH08504391A (en) | 1996-05-14 |
DK0664761T3 (en) | 1996-12-02 |
EP0664761B1 (en) | 1996-07-24 |
TR27177A (en) | 1994-11-10 |
AU4832093A (en) | 1994-04-26 |
ATE140672T1 (en) | 1996-08-15 |
CA2146147A1 (en) | 1994-04-14 |
US5366741A (en) | 1994-11-22 |
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